NEET questions
18092 published questions with worked solutions.
- The Gibbs energy for the decomposition of Al _2 O _3 at 500^ C is as follows: 2 3 Al _2 O _3 4 3 Al + O _2; _r G = +960 kJ mol ^...
- Four successive members of the first series of the transition metals are listed below. For which one of them the standard...
- Molar conductivities ( ^0_m ) at infinite dilution of NaCl, HCl and CH _3 COONa are 126.4, 425.9 and 91.0 S cm ^2 mol ^ -1...
- Consider the reaction: RCHO + NH _2 NH _2 RCH = N - NH _2 What sort of reaction is it?
- During change of O _2 to O _2^- ion, the electron adds on which one of the following orbitals?
- Standard reduction potentials of the half reactions are given below: F _ 2(g) + 2e^- 2 F ^-_ (aq) ; E^0 = +2.85 V Cl _ 2(g) +...
- The catalytic activity of transition metals and their compounds is ascribed mainly to
- Equal volumes of two monoatomic gases, A and B, at same temperature and pressure are mixed. The ratio of specific heats (C_p/C_v)...
- Given that the equilibrium constant for the reaction 2 SO _ 2(g) + O _ 2(g) 2 SO _ 3(g) has a value of 278 at a particular...
- Activation energy (E_a) and rate constants (k_1 and k_2) of a chemical reaction at two different temperatures (T_1 and T_2) are...
- Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them:
- Which of the following compounds can be used as antifreeze in automobile radiators?
- For real gases van der Waals equation is written as (P + an^2 V^2 )(V - nb) = nRT where 'a' and 'b' are van der Waals constants....
- Which of the following reagents will be able to distinguish between 1-butyne and 2-butyne?
- Given the reaction between 2 gases represented by A _2 and B _2 to give the compound AB _ (g) . A _ 2(g) + B _ 2(g) 2 AB _ (g) At...
- In the five-kingdom classification, *Chlamydomonas* and *Chlorella* have been included in
- A test cross is carried out to
- Which one of the following human organs is often called the "graveyard" of RBCs ?
- Which one of the following generally acts as an antagonist to gibberellins ?
- Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells).